The PI6C115-02, part of Perisom's SiliconClock family. has been optimized to support Intel's latest processors -- including Coppermine, Celeron, and Pentium III -- and meets all of Intel's latest system timing requirements with wide margins, Pericom said. It supports processor buses from the 66-MHz Celeron for value PCs up to 133-MHz Pentium III systems.

The PI6C115-02 also meets the stringent skew and jitter requirements of PCs with 133-MHz bus speeds. Output-to-output and group-to-group skews are carefully tuned to meet the timings required for the 133-MHz processor bus, as well as memory buses up to 133 MHz.

"As clock frequencies increase and timing requirements become more demanding, Pericom is able to deliver leading-edge clock products with rapid availability," said Sergis Mushell, Pericom'sSiliconClock product marketing engineer. "Our close partnership with Intel enables us to introduce integrated PC clock solutions that exceed today's standards. As a result, several major PC manufacturers are considering designing their next generation systems with Pericom's PI6C115-02."

To support system timing, the PI6C115-02 has two phase-locked-loops (PLL) that generate various outputs with frequency options. To support up to 512 megabytes of memory in a 2 DIMM configuration, there are nine copies of SDRAM clocks.

The PI6C115-02 has three copies of CPU clocks, seven copies of PCI clocks to support six PCI devices, one 48-MHz clock for a Universal Serial Bus (USB), one 48-MHz clock for the chip set, and three 66-MHz clocks. Spread-spectrum clocking can be enabled to lower EMI. To further lower EMI and power consumption, the unused clocks can be individually turned off through an I2C interface, and if necessary, the entire chip can be powered down.

The PI6C115-02 is available now in 56-pin SSOP and TSSOP packaging. It is priced at $5.65 per 1,000 quantities.